The status of the nuisance aquatic weed Lagarosiphon major in Lake Taupo in 1980, with notes on associated species
By: Howard-Williams, C.
Contributor(s): Davis, J. (DSIR, Ecology Division, Freshwater Section. Taupo) | DSIR, Ecology Division, Freshwater Section. Taupo.Material type: BookSeries: Taupo Research Laboratory report: no. 31Publisher: Taupo, N.Z. : Ecology Division, DSIR, 1980Description: 36 leaves : illustrations (figures) ; 30 cm.Subject(s): LAGAROSIPHON MAJOR | NITELLA HOOKERI | RANUNCULUS FLUITANS | CERATOPHYLLUM DEMERSUM | ELODEA CANADENSIS | AQUATIC WEEDS | LAKE TAUPO | EUTROPHICATION | BIOGEOGRAPHY
|Item type||Current location||Call number||Copy number||Status||Date due||Barcode|
|JOURNAL||WELLINGTON STACK||STACK NO. 31 1980||1||Available||J016580|
11 refs; 20 figs; 3 tables Available from DSIR, Division of Marine and Freshwater, Taupo
Lagarosiphon major has been in New Zealand since 1950 and was first officially recorded in Lake Taupo in 1966 (Wilson and Gibbs, 1966). It is now the only problem weed in the lake itself although the native species Nitella hookeri causes problems in Kinloch marina, and the exotic species Elodea canadensis, Ranunculus fluitans and Ceratophyllum demersum are all present and have the potential to cause problems. The survey had the following three objectives: i. To record as accurately as possible the distribution of Lagarosiphon in Lake Taupo. Elodea and Ceratophyllum were also to be included. ii. To attempt an initial correlation between the distribution and abundance of Lagarosiphon with respect to sediment type, water depth, possible influence of pollution, and shoreline exposure to wind and wave action. iii. To identify situations likely to become problem areas in the future